Photocatalytic degradation of azo dyes by ultra-small green synthesized silver nanoparticles

Journal of the Taiwan Institute of Chemical Engineers, Год журнала: 2023, Номер 142, С. 104663 - 104663

Опубликована: Янв. 1, 2023

Язык: Английский

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Ag–Cu Embedded SDS Nanoparticles for Efficient Removal of Toxic Organic Dyes from Water Medium

Industrial & Engineering Chemistry Research, Год журнала: 2023, Номер 62(11), С. 4765 - 4777

Опубликована: Март 14, 2023

Remediation of industrial water pollution is a trending subject to date for the researchers around globe, due its detrimental effects on human life as well aquatic life. Azo dyes are largest polluters in respect volume while anthraquinone second largest. Therefore, humongous considerations being enumerated removal and decolorization azo (AZ) dyestuff; however, (AQ) dyes, these efforts considerably minimal; although later one poses greater threat environmental contamination, because their reinforced structure. The current study an effort toward this foremost issue. Chemical reduction synthesis silver–copper (Ag–Cu) bimetallic nanoparticles (BNPs) was achieved using NaBH4 reducing agent sodium dodecyl sulfate (SDS) stabilizer. Characterization morphological evaluation indicates two distinctive UV/vis absorption peaks Ag Cu. XRD studies nanocomposite showed crystallite size 8.96014 nm having FCC SEM with EDX confirmed particle sizes BNPs SDS be 17.14 114.56 nm, respectively. Potential catalytic activity kinetic parameters Ag–Cu BNPs@SDS were monitored against Methylene Blue (MB), Methyl Orange (MO), eosin-y (EY). percentage degradation recorded nanocatalyst MO, MB, EY 95.21%, 98.57%, 96.65%, This method can adopted multiple from effluent larger scale.

Язык: Английский

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Porous materials: Covalent Organic Frameworks (COFs) as game-changers in practical applications, a review

Reviews in Inorganic Chemistry, Год журнала: 2023, Номер 44(1), С. 117 - 133

Опубликована: Сен. 20, 2023

Abstract Covalent Organic Frameworks (COFs) represents a class of remarkable porous materials composed organic building blocks that are covalently linked in periodic manner to form crystalline structures. High surface area, high porosity, tunable pore size, and stability their exceptional properties, which make them attractive candidates for various applications the fields catalysis, energy storage devices, biomedical applications, gas separation applications. In fact, great interest shown COFs gave us stimulus review output recent substantial efforts this area. Meanwhile, development portable sophisticated systems based on these particles is believed create deeper insights scientists embark new investigations pave way discovering fundamental characteristics COFs, modifications. Furthermore, effect modifications/fractionalizations performance will be thoroughly explained challenging problems mentioned. Moreover, paper covers an inclusive collection referenced research articles, providing readers with comprehensive understanding subject matter extensive bibliography further exploration. Through overview, alleviates noteworthy contributions driving innovation progress range key scientific disciplines.

Язык: Английский

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Study on the adsorption performance of modified high silica fly ash for methylene blue

RSC Advances, Год журнала: 2024, Номер 14(30), С. 21342 - 21354

Опубликована: Янв. 1, 2024

Based on the high silica content and adsorption characteristics of fly ash, two novel adsorbents, namely mesoporous silica-based material (MSM) sodium dodecyl sulfate-modified ash (SDS-FA), were prepared.

Язык: Английский

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In-Situ Synthesize of Ag NPs/SiO2 Nanocomposite by Gamma Ray and its Application as Catalyst in Decolorization of Dyes

Cleaner Chemical Engineering, Год журнала: 2025, Номер unknown, С. 100152 - 100152

Опубликована: Янв. 1, 2025

Язык: Английский

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Rational synthesis, biological screening of azo derivatives of chloro-phenylcarbonyl diazenyl hydroxy dipyrimidines/thioxotetrahydropyrimidines and their metal complexes

Heliyon, Год журнала: 2022, Номер 9(1), С. e12492 - e12492

Опубликована: Дек. 27, 2022

Herein, a new series of azo ligands HL-1 (5-(2-chloro-6-(phenylcarbonyl)phenyl)diazenyl)-6-hydroxydihydropyrimidines-2,4dione), HL-2 (5-(2-chloro-6-(phenylcarbonyl)phenyl)diazenyl)-6-hydroxy-2-thioxottetrahydropyrimidin-4one), HL-3 (5-(2,4-dichloro-6-(phenylcarbonyl)phenyl) diazenyl)-6-hydroxydihydropyrimidines-2,4dione), HL-4 (5-(2,4-dichloro-6-(phenylcarbonyl) phenyl)diazenyl)-6-hydroxy-2-thioxotetrahydropyrimidin-4one) and their metal complexes with Cu(II) & Ni(II) were synthesized successfully having excellent yield, in reproducible conditions for structure elucidation different advance spectroscopic techniques (FTIR, 1H NMR, 13C NMR Mass Spectrometry) applied. In FTIR analysis, the absence peak at 3450-3550 cm-1 due to -NH2 presence N=N 1390-1520 confirmed synthesis ligands. The spectra showed singlet 11.5-13.5 ppm (Ar-OH) hydroxyl group signals disappearance anilines 4-5 also gives strong indication compounds. On complexation two most important peaks (M-O, M-N) appeared all chelates range 400-600 which not present any ligands, formation complexes. Molecular ion mass 273, 388, 407 423 m/z value as well 803, 835, 871 904 give that proposed are produced successfully. Biological screening compounds carried out against bacterial strains (E.coli, S.typhi, B.subtilis), antifungal (C.albicans, A.niger, C.glabrata) antioxidant activity. From results it was observed Cu exhibited maximum inhibition fungal compared other standard drug.

Язык: Английский

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Enhancing methyl orange adsorption capacity via functionalizing ZIF-8 with amphiphilic cetylpyridinium bromide

Journal of the Taiwan Institute of Chemical Engineers, Год журнала: 2023, Номер 146, С. 104865 - 104865

Опубликована: Апрель 8, 2023

Язык: Английский

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Polyurethane‐based nanocomposite for catalytic reduction of toxic dyes

Polymers for Advanced Technologies, Год журнала: 2024, Номер 35(4)

Опубликована: Апрель 1, 2024

Abstract In this work, we prepared AuNPs loaded polyurethane‐sodium alginate (Au‐PU‐ALg) composite polymers by casting and in‐situ reduction method. Successful fabrication of was confirmed UV–visible, Fourior transform infrared (FTIR) spectroscopy, X‐ray diffraction (XRD), field emission scanning elcetron microscopy (FESEM), energy dispersive (EDX) analysis along with the change in color suspension from yellow to dark purple. Thermo‐gravimetric (TGA) also loading 7.44 % total nanocomposite contents. The catalytic activity Au‐PU‐ALg nanocomposites checked reducing Rhodamine B (RhB) as a model reaction. It seen that RhB successfully done presence NaBH 4 just 8 min value k app found 0.648 −1 . While for 0.0008, 0.00221, 0.0008 catalyst, polymer gel particles, respectively. Thus results show catalyst high compared controlled reactions. Complex mixture dyes such RhB, crystal violet (CV), Congo red (CR), polluted industrial wastewater become colorless 10 3 min, respectively on mixing agent. observed followed pseudo first order kinetic Langmuir Hinshelwood mechanism.

Язык: Английский

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Rapid catalytic reduction of environmentally toxic azo dye pollutant by Prussian blue analogue nanocatalyst

RSC Advances, Год журнала: 2024, Номер 14(22), С. 15232 - 15239

Опубликована: Янв. 1, 2024

The paper discusses the synthesis and catalytic activity of a promising, cost-effective, stable Prussian blue analogue nanocatalyst for rapid elimination hazardous azo dye in industrial effluents.

Язык: Английский

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Antimicrobial attributes and enhanced catalytic potential of PVA stabilized Ag-NiO2 nanocomposite for wastewater treatment

Arabian Journal of Chemistry, Год журнала: 2023, Номер 17(2), С. 105545 - 105545

Опубликована: Дек. 9, 2023

Dyes are well known major pollutants in wastewater discharged by various textile industries which toxic to human beings and aquatic life. It is necessary remove these colorants from water with low-cost yet effective method can be removed the bodies. Current study has been designed develop cost-effective material for removal of dyes along application composite inhibit growth Gram negative (GN) positive (GP) bacterium. Nanocomposite (Ag-NiO2@PVA) silver nickel was synthesized chemical reduction polyvinyl alcohol (PVA) used as a stabilizing medium. (NC) characterized employing different techniques including XRD, SEM, DLS, FTIR not only confirmed its synthesis but also provided their structure morphology. The hexagonal close packed nanocomposite tested catalytic degradation azo anthraquinone methylene blue (MB), methyl orange (MO) eosin yellow (EY). MO, MB EY recorded 20, 16 20 min percentage 89.26, 95.88 96.56% respectively. Antibacterial potential assessed against GN GP bacterial strains namely Bacillus subtilis, Staphylococcus aureus Escherichia coli as-synthesized Ag-NiO2@PVA exhibited strong zone inhibition all types mentioned herein. recovered analyzed after dye antibacterial studies have stability recyclability nanocomposite. Results current strongly recommend treatment applications i.e. pathogens. Silver based modified followed PVA sciences.

Язык: Английский

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